Insulation and soundproofing
New HFO blowing agents for spray foam will make it over 1,000 times less harmful to the climate
...global warming potential (GWP) that was over a thousand times worse than carbon dioxide as a green house gas.
As a result of the 1990 Montreal Protocol to ban ozone-depleting gases - mainly chlorofluorocarbons (CFCs) - hydrofluorocarbons (HFCs) took their place as the blowing agents for foam insulation. That halted oz...
